Re: K-jet idle mix tool...

[Robert Houk - SMCC Bos Desktop Hardware <rdh@UrQ.East.Sun.COM>]

   What type of tool do I need to reach down into that little hole between the

A little doohickey works . . .

As I recall, it's a 3 or 3.5mm hex (allen) wrench. The kind with the "rounded"
ball-end makes life a lot easier.

   air flow sensor plate housing and the fuel distributor? Is there just a little
   teeny allen screw down there? And whatever is down there does in fact control
   the idle mix, right?

Nope, it's a static mixture adjust, it affects the entire rev range (although
proportionately more effect on low-end than high.

Manual says to adjust via measuring CO (CO2?) with O2 sensor disconnected
and a bunch of other crap too.

I adjust via monitoring the ECU's FreqValve duty cycle output. Ideal is
50% (static mixture dead on, ECU needs no corrections). I've had good luck
in past lives by adjusting for about 45% at idle (slightly rich). The
effect is that cold, the static mixture will be richer; warmed up the
mixture will be right on (ECU==>duty cycle control).

Idle speed is set via idle air bypass on throttle body and NOT BY THE
THROTTLE STOP SCREW on the throttle body. Strange creatures, these cars...

					-RDH

P.S.	Oh yeah, the mixture adjust is extremely sensitive, leaving the
	allen wrench in place will affect the mixture -- you have to find
	the screw, change it, remove wrench, blip throttle a few times and
	wait for it to settle down again to see what effect you had when
	you mucked with it.